Is Staphylococcus epidermidis indole positive or negative?

Is Staphylococcus epidermidis indole positive or negative?

Staphylococcus epidermidis is a Gram-positive bacterium, and one of over 40 species belonging to the genus Staphylococcus.

Is Staphylococcus lactose fermenter?

aureus liquefy gelatin and showed positive results[16]. Our study reveals that all isolated S. aureus strains changes the colour of media from yellow to red, indicating positive reactivity in urea hydrolysis. In this study, all isolated strains showed a positive result in lactose fermentation test.

Is Staphylococcus aureus positive for starch hydrolysis?

aureus isolates showed positive results in gelatin, urea and galactose hydrolysis test, 50% isolates were positive in starch hydrolysis test, 35% in protein hydrolysis test, 100% isolates in lactose fermenting test, but no isolate was positive in sucrose fermenting test.

Is Staphylococcus catalase positive or negative?

Staphylococcus aureus is a gram positive, catalase and coagulase positive coccus and by far the most important pathogen among the staphylococci. It produces enzymes such as catalase which are considered to be virulence determinants.

Is Staphylococcus aureus gelatinase positive?

This test is helpful in identifying and differentiating species of Serratia, Proteus, Bacillus, Clostridium, Pseudomonas and Flavobacterium. This test differentiates pathogenic Staphylococcus aureus which is gelatinase-positive from non-pathogenic epidermidis which is gelatinase negative.

Is E. coli gelatinase positive?

The Escherichia coli culture remained solidified indicating that gelatinase was not produced. The red color in the agar is due to the pigment produced by Serratia marcescens.

How do you diagnose Staphylococcus aureus?

Coagulase testing is the single most reliable method for identifying Staphylococcus aureus[9]. Coagulase production can be detected using either the slide coagulase test (SCT) or the tube coagulase test (TCT).

What bacteria are gelatinase positive?

Bacillus anthracis, B. cereus and several other members of the genus are gelatinase-positive, as are Clostridium tetani and perfringens.